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51496208 = 2431473
BaseRepresentation
bin1100010001110…
…0010100010000
310120220021111222
43010130110100
5101140334313
65035424212
71163465501
oct304342420
9116807458
1051496208
1127082955
12152b5068
13a89043a
146ba6ba8
1547c3208
hex311c510

51496208 has 40 divisors (see below), whose sum is σ = 105231360. Its totient is φ = 24387360.

The previous prime is 51496187. The next prime is 51496217. The reversal of 51496208 is 80269415.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1095641 + ... + 1095687.

It is an arithmetic number, because the mean of its divisors is an integer number (2630784).

Almost surely, 251496208 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51496208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52615680).

51496208 is an abundant number, since it is smaller than the sum of its proper divisors (53735152).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51496208 is an frugal number, since it uses more digits than its factorization.

51496208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180 (or 80 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 51496208 is about 7176.0858411811. The cubic root of 51496208 is about 372.0418113100.

The spelling of 51496208 in words is "fifty-one million, four hundred ninety-six thousand, two hundred eight".

Divisors: 1 2 4 8 16 31 47 62 94 124 188 248 376 496 752 1457 2209 2914 4418 5828 8836 11656 17672 23312 35344 68479 103823 136958 207646 273916 415292 547832 830584 1095664 1661168 3218513 6437026 12874052 25748104 51496208